Performance degradation when quitting on Windows 10

[BuriedStPatrick]

Describe the bug
Since 0.16.0 and onwards, quitting GitUI seems to be significantly slower than it used to on Windows. This does not appear to be the case on my Linux machines, however.

To Reproduce
Steps to reproduce the behavior:

1. Install gitui @ 0.16.2
2. Run a terminal like cmd.exe (also tested in pwsh.exe)
3. Navigate to a repository
4. Open gitui in a repository
5. Quit gitui
6. Wait 1-3 seconds (unsure if depends on hardware specs and repository)

Expected behavior
On 0.15.0 gitui quits almost immediately. I would expect the same on 0.16.x+.

Screenshots
To better illustrate, here's a GIF where I compare the two versions:

Context (please complete the following information):

• OS/Distro + Version: Windows 10 Pro 10.0.19043 Build 19043
• GitUI Version 0.16.2
• Rust version: 1.5.0

Additional context
Installed through scoop. I've also tested on cargo install but the problem persists unfortunately.

[extrawurst]

@BuriedStPatrick thanks for reporting this. I have a hunch what it is related to but to confirm: what key bindings do you use and what exact key did you use to quit in this example. could you also test if quitting via ctrl+c performs faster?

[BuriedStPatrick]

@extrawurst That's great news!
I used ctrl+c in both examples in the GIF.
Quitting with Q in v0.16.2 is seemingly equally as slow as with ctrl+c. (in v0.15.0 the Q keybinding isn't implemented it seems).

I can also reproduce this with both the standard cmd.exe as well as Windows Terminal.
I haven't changed any of the default keybindings as I quite like them :)

key_config.ron:

(
    tab_status: (
        code: Char('1'),
        modifiers: (
            bits: 0,
        ),
    ),
    tab_log: (
        code: Char('2'),
        modifiers: (
            bits: 0,
        ),
    ),
    tab_files: (
        code: Char('3'),
        modifiers: (
            bits: 0,
        ),
    ),
    tab_stashing: (
        code: Char('4'),
        modifiers: (
            bits: 0,
        ),
    ),
    tab_stashes: (
        code: Char('5'),
        modifiers: (
            bits: 0,
        ),
    ),
    tab_toggle: (
        code: Tab,
        modifiers: (
            bits: 0,
        ),
    ),
    tab_toggle_reverse: (
        code: BackTab,
        modifiers: (
            bits: 1,
        ),
    ),
    toggle_workarea: (
        code: Char('w'),
        modifiers: (
            bits: 0,
        ),
    ),
    focus_right: (
        code: Right,
        modifiers: (
            bits: 0,
        ),
    ),
    focus_left: (
        code: Left,
        modifiers: (
            bits: 0,
        ),
    ),
    focus_above: (
        code: Up,
        modifiers: (
            bits: 0,
        ),
    ),
    focus_below: (
        code: Down,
        modifiers: (
            bits: 0,
        ),
    ),
    exit: (
        code: Char('c'),
        modifiers: (
            bits: 2,
        ),
    ),
    quit: (
        code: Char('q'),
        modifiers: (
            bits: 0,
        ),
    ),
    exit_popup: (
        code: Esc,
        modifiers: (
            bits: 0,
        ),
    ),
    open_commit: (
        code: Char('c'),
        modifiers: (
            bits: 0,
        ),
    ),
    open_commit_editor: (
        code: Char('e'),
        modifiers: (
            bits: 2,
        ),
    ),
    open_help: (
        code: Char('h'),
        modifiers: (
            bits: 0,
        ),
    ),
    move_left: (
        code: Left,
        modifiers: (
            bits: 0,
        ),
    ),
    move_right: (
        code: Right,
        modifiers: (
            bits: 0,
        ),
    ),
    tree_collapse_recursive: (
        code: Left,
        modifiers: (
            bits: 1,
        ),
    ),
    tree_expand_recursive: (
        code: Right,
        modifiers: (
            bits: 1,
        ),
    ),
    home: (
        code: Home,
        modifiers: (
            bits: 0,
        ),
    ),
    end: (
        code: End,
        modifiers: (
            bits: 0,
        ),
    ),
    move_up: (
        code: Up,
        modifiers: (
            bits: 0,
        ),
    ),
    move_down: (
        code: Down,
        modifiers: (
            bits: 0,
        ),
    ),
    page_down: (
        code: PageDown,
        modifiers: (
            bits: 0,
        ),
    ),
    page_up: (
        code: PageUp,
        modifiers: (
            bits: 0,
        ),
    ),
    shift_up: (
        code: Up,
        modifiers: (
            bits: 1,
        ),
    ),
    shift_down: (
        code: Down,
        modifiers: (
            bits: 1,
        ),
    ),
    enter: (
        code: Enter,
        modifiers: (
            bits: 0,
        ),
    ),
    blame: (
        code: Char('B'),
        modifiers: (
            bits: 1,
        ),
    ),
    edit_file: (
        code: Char('e'),
        modifiers: (
            bits: 0,
        ),
    ),
    status_stage_all: (
        code: Char('a'),
        modifiers: (
            bits: 0,
        ),
    ),
    status_reset_item: (
        code: Char('D'),
        modifiers: (
            bits: 1,
        ),
    ),
    status_ignore_file: (
        code: Char('i'),
        modifiers: (
            bits: 0,
        ),
    ),
    diff_stage_lines: (
        code: Char('s'),
        modifiers: (
            bits: 0,
        ),
    ),
    diff_reset_lines: (
        code: Char('d'),
        modifiers: (
            bits: 0,
        ),
    ),
    stashing_save: (
        code: Char('s'),
        modifiers: (
            bits: 0,
        ),
    ),
    stashing_toggle_untracked: (
        code: Char('u'),
        modifiers: (
            bits: 0,
        ),
    ),
    stashing_toggle_index: (
        code: Char('i'),
        modifiers: (
            bits: 0,
        ),
    ),
    stash_apply: (
        code: Char('a'),
        modifiers: (
            bits: 0,
        ),
    ),
    stash_open: (
        code: Right,
        modifiers: (
            bits: 0,
        ),
    ),
    stash_drop: (
        code: Char('D'),
        modifiers: (
            bits: 1,
        ),
    ),
    cmd_bar_toggle: (
        code: Char('.'),
        modifiers: (
            bits: 0,
        ),
    ),
    log_tag_commit: (
        code: Char('t'),
        modifiers: (
            bits: 0,
        ),
    ),
    commit_amend: (
        code: Char('a'),
        modifiers: (
            bits: 2,
        ),
    ),
    copy: (
        code: Char('y'),
        modifiers: (
            bits: 0,
        ),
    ),
    create_branch: (
        code: Char('c'),
        modifiers: (
            bits: 0,
        ),
    ),
    rename_branch: (
        code: Char('r'),
        modifiers: (
            bits: 0,
        ),
    ),
    select_branch: (
        code: Char('b'),
        modifiers: (
            bits: 0,
        ),
    ),
    delete_branch: (
        code: Char('D'),
        modifiers: (
            bits: 1,
        ),
    ),
    merge_branch: (
        code: Char('m'),
        modifiers: (
            bits: 0,
        ),
    ),
    tags: (
        code: Char('T'),
        modifiers: (
            bits: 1,
        ),
    ),
    delete_tag: (
        code: Char('D'),
        modifiers: (
            bits: 1,
        ),
    ),
    select_tag: (
        code: Enter,
        modifiers: (
            bits: 0,
        ),
    ),
    push: (
        code: Char('p'),
        modifiers: (
            bits: 0,
        ),
    ),
    open_file_tree: (
        code: Char('F'),
        modifiers: (
            bits: 1,
        ),
    ),
    force_push: (
        code: Char('P'),
        modifiers: (
            bits: 1,
        ),
    ),
    pull: (
        code: Char('f'),
        modifiers: (
            bits: 0,
        ),
    ),
    abort_merge: (
        code: Char('M'),
        modifiers: (
            bits: 1,
        ),
    ),
    undo_commit: (
        code: Char('U'),
        modifiers: (
            bits: 1,
        ),
    ),
)

[extrawurst]

@BuriedStPatrick ok then my theory is wrong. could you do 2 things:

• run gitui --bugreport and paste the result
• rerun your repro with gitui -l (which enables logging, see https://github.com/extrawurst/gitui#diagnostics) and share the resulting logfile

[BuriedStPatrick]

@extrawurst Here you go :)

Software version

gitui 0.16.2 (aacc7a3-modified)

Operating system

Windows 6.2.9200

Compile time information

• Profile: release
• Target triple: x86_64-pc-windows-msvc
• Family: windows
• OS: windows
• Architecture: x86_64
• Pointer width: 64
• Endian: little
• CPU features: fxsr,sse,sse2
• Host: x86_64-pc-windows-msvc

Environment variables

SHELL=<not set>
EDITOR=<not set>
GIT_EDITOR=<not set>
VISUAL=<not set>

Command-line

C:\Users\patrick.christensen\scoop\apps\gitui\current\gitui.exe --bugreport

Log when running v0.15.0:

14:36:11 [TRACE] (1) gitui::app: [src\app.rs:305] update
14:36:11 [TRACE] (1) asyncgit::status: [asyncgit\src\status.rs:95] request: [hash: 4747929034360955961] (type: WorkingDir, untracked: true)
14:36:11 [TRACE] (1) asyncgit::status: [asyncgit\src\status.rs:95] request: [hash: 11643232720821160596] (type: Stage, untracked: true)
14:36:11 [TRACE] (3) asyncgit::status: [asyncgit\src\status.rs:152] status fetched: 11643232720821160596 (type: Stage, untracked: true)
14:36:11 [TRACE] (2) asyncgit::status: [asyncgit\src\status.rs:152] status fetched: 4747929034360955961 (type: WorkingDir, untracked: true)
14:36:11 [TRACE] (1) gitui::app: [src\app.rs:237] event: Input(Resize(118, 30))
14:36:11 [TRACE] (1) gitui::app: [src\app.rs:323] update_git: Status
14:36:11 [TRACE] (1) gitui::app: [src\app.rs:323] update_git: Status
14:36:12 [TRACE] (1) gitui::app: [src\app.rs:237] event: Input(Key(KeyEvent { code: Char('c'), modifiers: CONTROL }))

Log when running v.0.16.2 (seems to throw an error at the end there 🤔):

14:37:03 [TRACE] (1) gitui::app: [src\app.rs:330] update
14:37:03 [TRACE] (1) asyncgit::status: [asyncgit\src\status.rs:90] request: [hash: 18048908903348948695] (type: WorkingDir)
14:37:03 [TRACE] (1) asyncgit::status: [asyncgit\src\status.rs:90] request: [hash: 6368461436514963192] (type: Stage)
14:37:03 [TRACE] (4) asyncgit::status: [asyncgit\src\status.rs:143] status fetched: 6368461436514963192 (type: Stage)
14:37:03 [TRACE] (2) asyncgit::status: [asyncgit\src\status.rs:143] status fetched: 18048908903348948695 (type: WorkingDir)
14:37:03 [TRACE] (1) gitui::app: [src\app.rs:261] event: Input(Resize(118, 30))
14:37:03 [TRACE] (1) gitui::app: [src\app.rs:349] update_git: Status
14:37:03 [TRACE] (1) gitui::app: [src\app.rs:349] update_git: Status
14:37:04 [TRACE] (1) gitui::app: [src\app.rs:261] event: Input(Key(KeyEvent { code: Char('c'), modifiers: CONTROL }))
14:37:04 [ERROR] input thread error: sending on a disconnected channel

[Icxolu]

It seems this was introduced in 423a014.
Specifically this https://github.com/extrawurst/gitui/blob/423a014b0e4946bf195f38f0a03539330aa47e09/src/input.rs#L54 seems to cause the problem.

When executing with cargo run it also gives an additional error code, which is not shown when just executing directly:
error: process didn't exit successfully: `target\debug\gitui.exe` (exit code: 0xc0000409, STATUS_STACK_BUFFER_OVERRUN)

Changing process::abort() into process::exit(<exit code>) or removing it seems to remove the delay again.

The logged error is still there, but i guess this is the expected (?) behavior.

[extrawurst]

@BuriedStPatrick @Icxolu can you test the branch fix-823-quit-delay-windows with b1bacbe and let me know if this fixes the close-delay?

[Icxolu]

@extrawurst This fixes it for me, I can't observe any close-delay anymore.